US 12,587,894 B2 · Method and wireless communication terminal for transmitting/receiving data in wireless communication system

Abstract

Disclosed is a method by which a multi-link device (MLD) of a wireless communication system transmits a frame. The MLD transmits a request frame for mapping between a traffic identifier (TID) and a link, and the request frame can include: first mapping information for establishing a mapping relationship between one or more TIDs from among a plurality of TIDs and one or more links; and information related to the number of the one or more TIDs for which mapping with the one or more links is requested. Thereafter, the MLD can receive a response frame in response to the request frame, and first remaining TIDs that exclude the one or more TIDs from among the plurality of TIDs maintain, to be valid, a previously established mapping relationship with a link, or a default mapping relationship is applied, and, for the first remaining TIDs, a mapping relationship with a specific link may not be indicated by the first mapping information.

Claims16

Dependent claims

A non-access point multi-link device (non-AP MLD) of a wireless communication system, the non-AP MLD comprising:

a communication module;
and
a processor configured to control the communication module,
wherein the processor is configured to:
transmit a request frame including a traffic identifier (TID)-to-Link Mapping element to an AP MLD,
wherein the TID-to-Link Mapping element includes i) one or more Link Mapping Of TID fields and ii) a link mapping presence subfield indicating whether each of the one or more Link Mapping Of TID fields are present, and
wherein each of the one or more Link Mapping Of TID fields indicates a mapping between a corresponding TID among multiple TIDs and at least one link among multiple links, and
receive a response frame as a response to the request frame,
wherein, when all of at least one first link mapped to a first TID among the multiple TIDs are removed based on a multi-link reconfiguration procedure related to removal or addition of a link, the first TID among the multiple TIDs is mapped to all remaining enabled links of the non-AP MLD except all of the at least one first link among the multiple links, and
wherein the first TID is mapped only to the at least one first link before the at least one first link is removed.

7 more elements

A method for transmitting a frame by a non-access point multi-link device (non-AP MLD) in a wireless communication system, the method comprising:

transmitting a request frame for mapping between a traffic identifier (TID) and a link,
wherein the request frame includes a traffic identifier (TID)-to-Link Mapping element to an AP MLD,
wherein the TID-to-Link Mapping element includes i) one or more Link Mapping Of TID fields and ii) a link mapping presence subfield indicating whether each of the one or more Link Mapping Of TID fields are present, and
wherein each of the one or more Link Mapping Of TID fields indicates a mapping between a corresponding TID among multiple TIDs and at least one link among multiple links;
and
receiving a response frame as a response to the request frame,
wherein, when all of at least one first link mapped to a first TID among the multiple TIDs are removed based on a multi-link reconfiguration procedure related to removal or addition of a link, the first TID among the multiple TIDs is mapped to all remaining enabled links of the non-AP MLD except all of the at least one first link among the multiple links, and
wherein the first TID is mapped only to the at least one first link before the at least one first link is removed.

5 more elements

Dependencies are inferred from the claim text.

Method and wireless communication terminal for transmitting/receiving data in wireless communication system

Life of this patent

Method and wireless communication terminal for transmitting/receiving data in wireless communication system

Life of this patent

Abstract

Claims16